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Intercom Articles MCP Server

by kaosensei
OverviewSchemaRelated ServersScoreDiscussions
JavaScript
Remote

add_conversation_note

Add an internal note to an Intercom conversation. These notes are visible only to team members, enabling private collaboration on customer issues.

Instructions

Add an internal note to an Intercom conversation. Notes are only visible to team members, not customers.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
conversation_idYesThe conversation ID to add a note to (required)
bodyYesThe note content (required). Supports HTML.
admin_idNoAdmin ID adding the note (optional, defaults to INTERCOM_ADMIN_ID env var)

Implementation Reference

  • src/index.ts:518-539 (schema)
    Input schema definition for the add_conversation_note tool. Defines required parameters: conversation_id (string), body (string, supports HTML), and optional admin_id.
    {
  name: 'add_conversation_note',
  description: 'Add an internal note to an Intercom conversation. Notes are only visible to team members, not customers.',
  inputSchema: {
    type: 'object',
    properties: {
      conversation_id: {
        type: 'string',
        description: 'The conversation ID to add a note to (required)'
      },
      body: {
        type: 'string',
        description: 'The note content (required). Supports HTML.'
      },
      admin_id: {
        type: 'string',
        description: 'Admin ID adding the note (optional, defaults to INTERCOM_ADMIN_ID env var)'
      }
    },
    required: ['conversation_id', 'body']
  }
},
  • src/index.ts:162-583 (registration)
    Tool registration via ListToolsRequestSchema handler in the MCP server. The tool list includes add_conversation_note as one of the available tools.
    server.setRequestHandler(ListToolsRequestSchema, async () => {
  return {
    tools: [
      {
        name: 'get_article',
        description: 'Get a single Intercom article by ID. Returns full article details including title, body, author, and state.',
        inputSchema: {
          type: 'object',
          properties: {
            id: {
              type: 'string',
              description: 'The article ID (e.g., "123456")'
            }
          },
          required: ['id']
        }
      },
      {
        name: 'list_articles',
        description: 'List Intercom articles with pagination. Returns a list of articles with basic information.',
        inputSchema: {
          type: 'object',
          properties: {
            page: {
              type: 'number',
              description: 'Page number (default: 1)',
              default: 1
            },
            per_page: {
              type: 'number',
              description: 'Number of articles per page (default: 10, max: 50)',
              default: 10
            }
          }
        }
      },
      {
        name: 'create_article',
        description: 'Create a new Intercom Help Center article. Supports multilingual content and draft/published states.',
        inputSchema: {
          type: 'object',
          properties: {
            title: {
              type: 'string',
              description: 'Article title (required)'
            },
            body: {
              type: 'string',
              description: 'Article content in HTML format (required)'
            },
            author_id: {
              type: 'number',
              description: 'Author ID - must be a valid Intercom admin ID (required). Use list_admins to find valid IDs by name.'
            },
            description: {
              type: 'string',
              description: 'Article description (optional)'
            },
            state: {
              type: 'string',
              enum: ['draft', 'published'],
              description: 'Article state (optional, default: draft)'
            },
            parent_id: {
              type: 'string',
              description: 'Parent ID - collection or section ID (optional)'
            },
            parent_type: {
              type: 'string',
              enum: ['collection'],
              description: 'Parent type (optional, default: collection)'
            },
            translated_content: {
              type: 'object',
              description: 'Multilingual content. Key is locale code (e.g., "zh-TW"), value is translation object',
              additionalProperties: {
                type: 'object',
                properties: {
                  title: {
                    type: 'string',
                    description: 'Translated title'
                  },
                  body: {
                    type: 'string',
                    description: 'Translated content in HTML'
                  },
                  description: {
                    type: 'string',
                    description: 'Translated description'
                  },
                  author_id: {
                    type: 'number',
                    description: 'Author ID for translation'
                  },
                  state: {
                    type: 'string',
                    enum: ['draft', 'published'],
                    description: 'Translation state'
                  }
                },
                required: ['title', 'body', 'author_id']
              }
            }
          },
          required: ['title', 'body', 'author_id']
        }
      },
      {
        name: 'update_article',
        description: 'Update an existing Intercom Help Center article. Supports partial updates and multilingual content.',
        inputSchema: {
          type: 'object',
          properties: {
            id: {
              type: 'string',
              description: 'Article ID (required)'
            },
            title: {
              type: 'string',
              description: 'Updated article title (optional)'
            },
            body: {
              type: 'string',
              description: 'Updated article content in HTML format (optional)'
            },
            description: {
              type: 'string',
              description: 'Updated article description (optional)'
            },
            state: {
              type: 'string',
              enum: ['draft', 'published'],
              description: 'Updated article state (optional)'
            },
            author_id: {
              type: 'number',
              description: 'Updated author ID (optional). Use list_admins to find valid IDs by name.'
            },
            translated_content: {
              type: 'object',
              description: 'Updated multilingual content. Only provided fields will be updated.',
              additionalProperties: {
                type: 'object',
                properties: {
                  title: {
                    type: 'string',
                    description: 'Updated translated title'
                  },
                  body: {
                    type: 'string',
                    description: 'Updated translated content in HTML'
                  },
                  description: {
                    type: 'string',
                    description: 'Updated translated description'
                  },
                  state: {
                    type: 'string',
                    enum: ['draft', 'published'],
                    description: 'Updated translation state'
                  }
                }
              }
            }
          },
          required: ['id']
        }
      },
      {
        name: 'delete_article',
        description: 'Delete an Intercom Help Center article. WARNING: This action cannot be undone. The article will be permanently removed.',
        inputSchema: {
          type: 'object',
          properties: {
            id: {
              type: 'string',
              description: 'Article ID to delete (required)'
            }
          },
          required: ['id']
        }
      },
      {
        name: 'list_collections',
        description: 'List all Intercom Help Center collections. Collections are top-level categories that contain sections and articles.',
        inputSchema: {
          type: 'object',
          properties: {
            page: {
              type: 'number',
              description: 'Page number (default: 1)',
              default: 1
            },
            per_page: {
              type: 'number',
              description: 'Number of collections per page (default: 50, max: 150)',
              default: 50
            }
          }
        }
      },
      {
        name: 'get_collection',
        description: 'Get a single Intercom Help Center collection by ID. Returns full collection details including name, description, and metadata.',
        inputSchema: {
          type: 'object',
          properties: {
            id: {
              type: 'string',
              description: 'The collection ID (e.g., "123456")'
            }
          },
          required: ['id']
        }
      },
      {
        name: 'create_collection',
        description: 'Create a new Intercom Help Center collection. Collections are top-level categories that contain sections and articles.',
        inputSchema: {
          type: 'object',
          properties: {
            name: {
              type: 'string',
              description: 'Collection name (required)'
            },
            description: {
              type: 'string',
              description: 'Collection description (optional)'
            },
            parent_id: {
              type: 'string',
              description: 'Parent collection ID for nesting (optional, null for top-level)'
            },
            translated_content: {
              type: 'object',
              description: 'Multilingual content. Key is locale code (e.g., "zh-TW"), value is translation object',
              additionalProperties: {
                type: 'object',
                properties: {
                  name: {
                    type: 'string',
                    description: 'Translated collection name'
                  },
                  description: {
                    type: 'string',
                    description: 'Translated collection description'
                  }
                }
              }
            }
          },
          required: ['name']
        }
      },
      {
        name: 'update_collection',
        description: 'Update an existing Intercom Help Center collection. Supports updating name, description, and multilingual translations.',
        inputSchema: {
          type: 'object',
          properties: {
            id: {
              type: 'string',
              description: 'Collection ID (required)'
            },
            name: {
              type: 'string',
              description: 'Updated collection name (optional, updates default language)'
            },
            description: {
              type: 'string',
              description: 'Updated collection description (optional, updates default language)'
            },
            parent_id: {
              type: 'string',
              description: 'Updated parent collection ID (optional, null for top-level)'
            },
            translated_content: {
              type: 'object',
              description: 'Updated multilingual content. Key is locale code (e.g., "zh-TW"), value is translation object',
              additionalProperties: {
                type: 'object',
                properties: {
                  name: {
                    type: 'string',
                    description: 'Translated collection name'
                  },
                  description: {
                    type: 'string',
                    description: 'Translated collection description'
                  }
                }
              }
            }
          },
          required: ['id']
        }
      },
      {
        name: 'delete_collection',
        description: 'Delete an Intercom Help Center collection. WARNING: This action cannot be undone. The collection and all its contents will be permanently removed.',
        inputSchema: {
          type: 'object',
          properties: {
            id: {
              type: 'string',
              description: 'Collection ID to delete (required)'
            }
          },
          required: ['id']
        }
      },
      {
        name: 'search_articles',
        description: 'Search for Intercom Help Center articles using keywords. Returns summary fields (id, title, description, state, url, author_id, created_at, updated_at, parent_id, parent_type) for each match. Use get_article to fetch the full content of a specific article.',
        inputSchema: {
          type: 'object',
          properties: {
            phrase: {
              type: 'string',
              description: 'Search phrase/keywords to find in articles (optional)'
            },
            state: {
              type: 'string',
              enum: ['published', 'draft', 'all'],
              description: 'Filter by article state (optional, default: all)'
            },
            help_center_id: {
              type: 'string',
              description: 'Filter by specific Help Center ID (optional)'
            }
          },
          required: []
        }
      },
      {
        name: 'reply_conversation',
        description: 'Reply to an Intercom conversation as an admin. Use this to send a message visible to the customer.',
        inputSchema: {
          type: 'object',
          properties: {
            conversation_id: {
              type: 'string',
              description: 'The conversation ID to reply to (required)'
            },
            body: {
              type: 'string',
              description: 'The reply message body (required). Supports HTML.'
            },
            admin_id: {
              type: 'string',
              description: 'Admin ID to reply as (optional, defaults to INTERCOM_ADMIN_ID env var)'
            }
          },
          required: ['conversation_id', 'body']
        }
      },
      {
        name: 'add_conversation_note',
        description: 'Add an internal note to an Intercom conversation. Notes are only visible to team members, not customers.',
        inputSchema: {
          type: 'object',
          properties: {
            conversation_id: {
              type: 'string',
              description: 'The conversation ID to add a note to (required)'
            },
            body: {
              type: 'string',
              description: 'The note content (required). Supports HTML.'
            },
            admin_id: {
              type: 'string',
              description: 'Admin ID adding the note (optional, defaults to INTERCOM_ADMIN_ID env var)'
            }
          },
          required: ['conversation_id', 'body']
        }
      },
      {
        name: 'close_conversation',
        description: 'Close an Intercom conversation.',
        inputSchema: {
          type: 'object',
          properties: {
            conversation_id: {
              type: 'string',
              description: 'The conversation ID to close (required)'
            }
          },
          required: ['conversation_id']
        }
      },
      {
        name: 'update_ticket_state',
        description: 'Update the state of an Intercom ticket.',
        inputSchema: {
          type: 'object',
          properties: {
            ticket_id: {
              type: 'string',
              description: 'The ticket ID to update (required)'
            },
            state: {
              type: 'string',
              enum: ['in_progress', 'waiting_on_customer', 'resolved'],
              description: 'The new ticket state (required)'
            }
          },
          required: ['ticket_id', 'state']
        }
      },
      {
        name: 'list_admins',
        description: 'List all Intercom workspace admins/team members. Returns IDs, names, and emails. Useful for discovering valid author_id or admin_id values.',
        inputSchema: {
          type: 'object',
          properties: {}
        }
      }
    ]
  };
});
  • src/index.ts:588-1078 (handler)
    The CallToolRequestSchema handler (line 588) routes tool calls by name. Lines 965-994 contain the add_conversation_note handler: it validates conversation_id, body, and admin_id, then calls the Intercom API POST /conversations/{id}/reply with message_type='note' to add an internal note visible only to team members.
    server.setRequestHandler(CallToolRequestSchema, async (request) => {
  const { name, arguments: args } = request.params;

  try {
    if (name === 'get_article') {
      const { id } = args as { id: string };

      if (!id) {
        throw new Error('Article ID is required');
      }

      const article = await callIntercomAPI(`/articles/${id}`);

      return {
        content: [{
          type: 'text',
          text: JSON.stringify(article, null, 2)
        }]
      };
    }

    if (name === 'list_articles') {
      const { page = 1, per_page = 10 } = args as {
        page?: number;
        per_page?: number;
      };

      // 確保參數在合理範圍內
      const validPage = Math.max(1, Math.floor(page));
      const validPerPage = Math.min(50, Math.max(1, Math.floor(per_page)));

      const data: ListArticlesResponse = await callIntercomAPI(
        `/articles?page=${validPage}&per_page=${validPerPage}`
      );

      return {
        content: [{
          type: 'text',
          text: JSON.stringify(data, null, 2)
        }]
      };
    }

    if (name === 'create_article') {
      const { title, body, author_id, description, state, parent_id, parent_type, translated_content } = args as {
        title: string;
        body: string;
        author_id: number;
        description?: string;
        state?: 'draft' | 'published';
        parent_id?: string;
        parent_type?: 'collection';
        translated_content?: {
          [locale: string]: {
            title: string;
            body: string;
            description?: string;
            author_id: number;
            state?: 'draft' | 'published';
          }
        }
      };

      // 驗證必填欄位
      if (!title || !body || !author_id) {
        throw new Error('title, body, and author_id are required fields');
      }

      // 建構 request payload
      const payload: any = {
        title,
        body,
        author_id
      };

      if (description) payload.description = description;
      if (state) payload.state = state;
      if (parent_id) payload.parent_id = parent_id;
      if (parent_type) payload.parent_type = parent_type;
      if (translated_content) payload.translated_content = translated_content;

      const article = await callIntercomAPI('/articles', 'POST', payload);

      return {
        content: [{
          type: 'text',
          text: JSON.stringify(article, null, 2)
        }]
      };
    }

    if (name === 'update_article') {
      const { id, title, body, description, state, author_id, translated_content } = args as {
        id: string;
        title?: string;
        body?: string;
        description?: string;
        state?: 'draft' | 'published';
        author_id?: number;
        translated_content?: {
          [locale: string]: {
            title?: string;
            body?: string;
            description?: string;
            state?: 'draft' | 'published';
          }
        }
      };

      // 驗證必填欄位
      if (!id) {
        throw new Error('Article ID is required');
      }

      // 建構 update payload（只包含提供的欄位）
      const payload: any = {};

      if (title) payload.title = title;
      if (body) payload.body = body;
      if (description) payload.description = description;
      if (state) payload.state = state;
      if (author_id) payload.author_id = author_id;
      if (translated_content) payload.translated_content = translated_content;

      // 確保至少有一個欄位要更新
      if (Object.keys(payload).length === 0) {
        throw new Error('At least one field must be provided for update');
      }

      const article = await callIntercomAPI(`/articles/${id}`, 'PUT', payload);

      return {
        content: [{
          type: 'text',
          text: JSON.stringify(article, null, 2)
        }]
      };
    }

    if (name === 'delete_article') {
      const { id } = args as { id: string };

      // 驗證必填欄位
      if (!id) {
        throw new Error('Article ID is required');
      }

      const result = await callIntercomAPI(`/articles/${id}`, 'DELETE');

      return {
        content: [{
          type: 'text',
          text: JSON.stringify(result, null, 2)
        }]
      };
    }

    if (name === 'list_collections') {
      const { page = 1, per_page = 50 } = args as {
        page?: number;
        per_page?: number;
      };

      // 確保參數在合理範圍內
      const validPage = Math.max(1, Math.floor(page));
      const validPerPage = Math.min(150, Math.max(1, Math.floor(per_page)));

      const data: ListCollectionsResponse = await callIntercomAPI(
        `/help_center/collections?page=${validPage}&per_page=${validPerPage}`
      );

      return {
        content: [{
          type: 'text',
          text: JSON.stringify(data, null, 2)
        }]
      };
    }

    if (name === 'get_collection') {
      const { id } = args as { id: string };

      if (!id) {
        throw new Error('Collection ID is required');
      }

      const collection = await callIntercomAPI(`/help_center/collections/${id}`);

      return {
        content: [{
          type: 'text',
          text: JSON.stringify(collection, null, 2)
        }]
      };
    }

    if (name === 'create_collection') {
      const { name: collectionName, description, parent_id, translated_content } = args as {
        name: string;
        description?: string;
        parent_id?: string;
        translated_content?: {
          [locale: string]: {
            name?: string;
            description?: string;
          }
        }
      };

      // 驗證必填欄位
      if (!collectionName) {
        throw new Error('Collection name is required');
      }

      // 建構 request payload
      const payload: any = {
        name: collectionName
      };

      if (description) payload.description = description;
      if (parent_id) payload.parent_id = parent_id;
      if (translated_content) payload.translated_content = translated_content;

      const collection = await callIntercomAPI('/help_center/collections', 'POST', payload);

      return {
        content: [{
          type: 'text',
          text: JSON.stringify(collection, null, 2)
        }]
      };
    }

    if (name === 'update_collection') {
      const { id, name: collectionName, description, parent_id, translated_content } = args as {
        id: string;
        name?: string;
        description?: string;
        parent_id?: string;
        translated_content?: {
          [locale: string]: {
            name?: string;
            description?: string;
          }
        }
      };

      // 驗證必填欄位
      if (!id) {
        throw new Error('Collection ID is required');
      }

      // 建構 update payload（只包含提供的欄位）
      const payload: any = {};

      if (collectionName !== undefined) payload.name = collectionName;
      if (description !== undefined) payload.description = description;
      if (parent_id !== undefined) payload.parent_id = parent_id;
      if (translated_content) payload.translated_content = translated_content;

      // 確保至少有一個欄位要更新
      if (Object.keys(payload).length === 0) {
        throw new Error('At least one field must be provided for update');
      }

      const collection = await callIntercomAPI(`/help_center/collections/${id}`, 'PUT', payload);

      return {
        content: [{
          type: 'text',
          text: JSON.stringify(collection, null, 2)
        }]
      };
    }

    if (name === 'delete_collection') {
      const { id } = args as { id: string };

      // 驗證必填欄位
      if (!id) {
        throw new Error('Collection ID is required');
      }

      const result = await callIntercomAPI(`/help_center/collections/${id}`, 'DELETE');

      return {
        content: [{
          type: 'text',
          text: JSON.stringify({
            success: true,
            message: `Collection ${id} has been deleted successfully`,
            ...result
          }, null, 2)
        }]
      };
    }

    if (name === 'search_articles') {
      const { phrase, state, help_center_id } = args as {
        phrase?: string;
        state?: 'published' | 'draft' | 'all';
        help_center_id?: string;
      };

      // 建構查詢參數
      const queryParams = new URLSearchParams();
      if (phrase) {
        queryParams.append('phrase', phrase);
      }

      if (state) {
        queryParams.append('state', state);
      }

      if (help_center_id) {
        queryParams.append('help_center_id', help_center_id);
      }

      const data: SearchArticlesResponse = await callIntercomAPI(
        `/articles/search?${queryParams.toString()}`
      );

      const summary = {
        total_count: data.total_count,
        articles: (data.data.articles ?? []).map(article => ({
          id: article.id,
          title: article.title,
          description: article.description,
          state: article.state,
          url: article.url,
          author_id: article.author_id,
          created_at: article.created_at,
          updated_at: article.updated_at,
          parent_id: article.parent_id,
          parent_type: article.parent_type,
        })),
      };

      return {
        content: [{
          type: 'text',
          text: JSON.stringify(summary, null, 2)
        }]
      };
    }

    if (name === 'reply_conversation') {
      const { conversation_id, body, admin_id } = args as {
        conversation_id: string;
        body: string;
        admin_id?: string;
      };

      if (!conversation_id || !body) {
        throw new Error('conversation_id and body are required');
      }

      const resolvedAdminId = admin_id || INTERCOM_ADMIN_ID;
      if (!resolvedAdminId) {
        throw new Error('admin_id is required. Set INTERCOM_ADMIN_ID env var or pass admin_id parameter.');
      }

      const result = await callIntercomAPI(`/conversations/${conversation_id}/reply`, 'POST', {
        message_type: 'comment',
        type: 'admin',
        admin_id: resolvedAdminId,
        body
      });

      return {
        content: [{
          type: 'text',
          text: JSON.stringify(result, null, 2)
        }]
      };
    }

    if (name === 'add_conversation_note') {
      const { conversation_id, body, admin_id } = args as {
        conversation_id: string;
        body: string;
        admin_id?: string;
      };

      if (!conversation_id || !body) {
        throw new Error('conversation_id and body are required');
      }

      const resolvedNoteAdminId = admin_id || INTERCOM_ADMIN_ID;
      if (!resolvedNoteAdminId) {
        throw new Error('admin_id is required. Set INTERCOM_ADMIN_ID env var or pass admin_id parameter.');
      }

      const result = await callIntercomAPI(`/conversations/${conversation_id}/reply`, 'POST', {
        message_type: 'note',
        type: 'admin',
        admin_id: resolvedNoteAdminId,
        body
      });

      return {
        content: [{
          type: 'text',
          text: JSON.stringify(result, null, 2)
        }]
      };
    }

    if (name === 'close_conversation') {
      const { conversation_id } = args as { conversation_id: string };

      if (!conversation_id) {
        throw new Error('conversation_id is required');
      }

      const resolvedAdminId = INTERCOM_ADMIN_ID;
      if (!resolvedAdminId) {
        throw new Error('admin_id is required. Set INTERCOM_ADMIN_ID env var.');
      }

      const result = await callIntercomAPI(`/conversations/${conversation_id}/reply`, 'POST', {
        message_type: 'close',
        type: 'admin',
        admin_id: resolvedAdminId
      });

      return {
        content: [{
          type: 'text',
          text: JSON.stringify(result, null, 2)
        }]
      };
    }

    if (name === 'update_ticket_state') {
      const { ticket_id, state } = args as {
        ticket_id: string;
        state: 'in_progress' | 'waiting_on_customer' | 'resolved';
      };

      if (!ticket_id || !state) {
        throw new Error('ticket_id and state are required');
      }

      const result = await callIntercomAPI(`/tickets/${ticket_id}`, 'PUT', { state });

      return {
        content: [{
          type: 'text',
          text: JSON.stringify(result, null, 2)
        }]
      };
    }

    if (name === 'list_admins') {
      const data = await callIntercomAPI('/admins');

      // 簡化回應，只回傳最實用的欄位
      const admins = (data.admins || []).map((admin: IntercomAdmin) => ({
        id: admin.id,
        name: admin.name,
        email: admin.email,
        has_inbox_seat: admin.has_inbox_seat,
        away_mode_enabled: admin.away_mode_enabled,
        team_ids: admin.team_ids
      }));

      return {
        content: [{
          type: 'text',
          text: JSON.stringify({
            type: 'admin.list',
            admins
          }, null, 2)
        }]
      };
    }

    throw new Error(`Unknown tool: ${name}`);

  } catch (error) {
    const errorMessage = error instanceof Error ? error.message : String(error);
    return {
      content: [{
        type: 'text',
        text: `Error: ${errorMessage}`
      }],
      isError: true
    };
  }
});
  • src/index.ts:106-145 (helper)
    Helper function callIntercomAPI that makes authenticated HTTP requests to the Intercom API. Used by the add_conversation_note handler to POST to /conversations/{id}/reply.
    const INTERCOM_TOKEN = process.env.INTERCOM_ACCESS_TOKEN;
const INTERCOM_ADMIN_ID = process.env.INTERCOM_ADMIN_ID;
const INTERCOM_API_BASE = 'https://api.intercom.io';

/**
 * 呼叫 Intercom API
 */
async function callIntercomAPI(
  endpoint: string,
  method: 'GET' | 'POST' | 'PUT' | 'DELETE' = 'GET',
  body?: any
): Promise<any> {
  const options: RequestInit = {
    method,
    headers: {
      'Authorization': `Bearer ${INTERCOM_TOKEN}`,
      'Accept': 'application/json',
      'Content-Type': 'application/json',
      'Intercom-Version': '2.14'
    }
  };

  if (body && (method === 'POST' || method === 'PUT')) {
    options.body = JSON.stringify(body);
  }

  const response = await fetch(`${INTERCOM_API_BASE}${endpoint}`, options);

  if (!response.ok) {
    const error = await response.text();
    throw new Error(`Intercom API error: ${response.status} - ${error}`);
  }

  // Handle 204 No Content response
  if (response.status === 204) {
    return { success: true };
  }

  return response.json();
}

Tool Definition Quality

A4/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries full burden. It mentions internal visibility but lacks details on authentication, rate limits, or side effects. Still, the core behavior is clear.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two sentences convey all necessary information with no redundancy. Highly concise and front-loaded.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the simple create operation and no output schema, the description adequately explains the purpose and key constraint (visibility). Could mention return value but not critical.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, and the description adds no parameter-specific information beyond what the schema already provides. Baseline score of 3 is appropriate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool adds an internal note to an Intercom conversation, specifying visibility to team members only. This distinguishes it from sibling tools like reply_conversation.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies when to use (add internal note) and contrasts with customer-facing replies, but does not explicitly state when not to use or list alternatives.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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